63243355265 has 16 divisors (see below), whose sum is σ = 76814904960. Its totient is φ = 49982069760.

The previous prime is 63243355249. The next prime is 63243355267. The reversal of 63243355265 is 56255334236.

It is not a de Polignac number, because 63243355265 - 2⁴ = 63243355249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63243355267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27425 + ... + 356705.

It is an arithmetic number, because the mean of its divisors is an integer number (4800931560).

Almost surely, 2^63243355265 is an apocalyptic number.

It is an amenable number.

63243355265 is a deficient number, since it is larger than the sum of its proper divisors (13571549695).

63243355265 is a wasteful number, since it uses less digits than its factorization.

63243355265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329752.

The product of its digits is 1944000, while the sum is 44.

The spelling of 63243355265 in words is "sixty-three billion, two hundred forty-three million, three hundred fifty-five thousand, two hundred sixty-five".